| Alban Hills |
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The dominant peak is the Monte Cavo, at 950 m (3,115 ft, ). There are two small Caldera s which contain Lake s, Lago Albano () and Lago Nemi (). The rock of the hills is Peperino Tuff , a combination of ash and small rocks that is useful for construction, and provides a mineral-rich substrate for Grape vines. The ancient Romans called them Albanus Mons. On the summit was the Sanctuary of Jupiter Latiaris , in which the Consul s celebrated the '' Feriae Latinae '', and several General s celebrated victories here when they were not accorded regular Triumph s in Rome. The temple has not survived, but the '''Via Triumphalis''' leading up to it may still be seen. The hills, especially around the shores of the lakes, have been popular since ancient times ( see Alba Longa and Tusculum ), as a way to escape the heat and crowds of Rome, and there are many Villa s and country houses to be seen. The towns and villages present today on Alban Hills area known as the ''Castelli Romani'':
Writers and artists who have produced work about this area include:
VOLCANIC ACTIVITY Examination of deposits have dated the two most recent eruptions to around 37,000 and 41,000 years ago {Link without Title} . The area exhibits small localised Earthquake swarms, Bradyseism , and release of Carbon Dioxide and Hydrogen Sulphide into the atmosphere. The uplift and earthquake swarms have been interpreted as caused by a slowly growing spherical Magma Chamber 5-6 kilometres below the surface. There is documentary evidence of an eruption in 114 BC , but the absence of Holocene geological deposits has largely descredited it as a volcanic event {Link without Title} and instead the account is considered to be a description of a fire. The volcano emits large amounts of carbon dioxide. This can potentially reach lethal concentrations if it accumulates in depressions in the ground in the absence of were killed in a similar incident in October 2001 {Link without Title} . EXTERNAL LINKS
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